{"id":10249,"date":"2026-08-21T09:54:40","date_gmt":"2026-08-21T09:54:40","guid":{"rendered":"https:\/\/santralgida.com\/the-guide-to-frozen-potatoes-cutting-methods-fryer-temperature-and-portion-calculations\/"},"modified":"2026-08-21T09:54:40","modified_gmt":"2026-08-21T09:54:40","slug":"the-guide-to-frozen-potatoes-cutting-methods-fryer-temperature-and-portion-calculations","status":"publish","type":"post","link":"https:\/\/santralgida.com\/en\/the-guide-to-frozen-potatoes-cutting-methods-fryer-temperature-and-portion-calculations\/","title":{"rendered":"The Guide to Frozen Potatoes: Cutting Methods, Fryer Temperature, and Portion Calculations"},"content":{"rendered":"<p><strong>In short:<\/strong> For frozen potatoes, the cut size is a much more decisive factor than the brand. The 7\u00d77 thin cut is ideal for quick service and crispiness; the 9\u00d79 is the most balanced all-purpose cut; and the 9\u00d718 thick cut has a soft interior and makes for an impressive presentation on the plate. The frying temperature should not exceed 175\u2013180 \u00b0C for any cut; the cooking time increases as the cut gets thicker. Below, you\u2019ll find a cut comparison, a deep-fryer chart, portion and box calculations, and an explanation of why oil consumption depends on the cut.   <\/p>\n<ul>\n<li><strong>The cut size<\/strong> (7\u00d77, 9\u00d79, 9\u00d718) refers to the square cross-sectional area of the potato in millimeters\u2014thinner cuts are crispier, while thicker cuts are heartier.<\/li>\n<li>According to regulations, <strong>the deep fryer temperature<\/strong> <strong>must not exceed 180 \u00b0C<\/strong>; in practice, 175 \u00b0C is the safest operating temperature.<\/li>\n<li><strong>A 2.5 kg package yields<\/strong> approximately <strong>19 servings<\/strong> of 130 g each, and a 12.5 kg box yields approximately <strong>96 servings<\/strong>.<\/li>\n<li><strong>Thin-cut slices use more oil<\/strong> \u2014they have approximately twice the surface area as 7\u00d77 slices of the same weight compared to 9\u00d718 slices.<\/li>\n<li><strong>Do not thaw frozen potatoes.<\/strong>  Melted potato oil cools, becomes doughy, and results in waste.<\/li>\n<\/ul>\n<h2>What do 7\u00d77, 9\u00d79, and 9\u00d718 mean when referring to frozen potatoes?<\/h2>\n<p>These numbers refer to <strong>the cross-sectional dimensions<\/strong> of the potato stick <strong>in millimeters<\/strong>. 9\u00d79 refers to the classic finger-shaped potato stick, which has a cross-section of 9 mm \u00d7 9 mm. The 7\u00d77 is thinner, while the 9\u00d718 is twice as thick in one direction\u2014that is, the thick-cut variety known as \u201csteak cut.\u201d Although brands may vary, these measurements are industry standards, so they serve as the only common language for comparison when switching between suppliers.   <\/p>\n<p>As <strong>the<\/strong> cross-sectional <strong>area<\/strong> increases, <strong>the<\/strong> potato\u2019s <strong>surface area-to-volume ratio<\/strong> decreases. This may seem like a mere technical detail, but in the kitchen, it directly determines three things: crispiness, frying time, and oil consumption. Thin slices have a larger surface area; they fry faster and become crispier, but they absorb more oil and soften more quickly after serving. Thick slices cook in the potato\u2019s own moisture; they stay hot and plump on the plate for longer.   <\/p>\n<table>\n<thead>\n<tr>\n<th>Section<\/th>\n<th>Texture<\/th>\n<th>Service life<\/th>\n<th>Oil absorption<\/th>\n<th>Typical Use<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>7\u00d77<\/strong> thin<\/td>\n<td>Very crispy, thin<\/td>\n<td>Short \u2014 must be served immediately<\/td>\n<td>Highest<\/td>\n<td>Fast food, takeout, snacks<\/td>\n<\/tr>\n<tr>\n<td><strong>9\u00d79<\/strong> Classic<\/td>\n<td>Balanced: crispy on the outside, soft on the inside<\/td>\n<td>Medium<\/td>\n<td>Medium<\/td>\n<td>General-purpose \u2014 restaurant, caf\u00e9, bistro<\/td>\n<\/tr>\n<tr>\n<td><strong>9\u00d718<\/strong> thick<\/td>\n<td>Plump and moist inside<\/td>\n<td>Longest<\/td>\n<td>Lowest<\/td>\n<td>Burgers, steaks, side dishes<\/td>\n<\/tr>\n<tr>\n<td><strong>Apple slices<\/strong><\/td>\n<td>With skin, rustic<\/td>\n<td>Long<\/td>\n<td>Low<\/td>\n<td>Breakfast, brunch, appetizer platter<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>At what temperature and for how many minutes should frozen potatoes be fried in a deep fryer?<\/h2>\n<p>Frozen potatoes are fried <strong>at 175 \u00b0C<\/strong>, and the cooking time increases as the slices get thicker: about 2.5\u20133 minutes for 7\u00d77, about 3 minutes for 9\u00d79, and about 4\u20135 minutes for 9\u00d718. Manufacturer instructions also fall within this range\u2014for example, McCain\u2019s 9\u00d79 mm product is recommended to be fried <strong>at 175 \u00b0C for 3 minutes<\/strong>. <\/p>\n<p>The upper limit is not a matter of preference, but a matter of regulation: According to Turkey\u2019s frying oil regulation, <strong>the temperature of frying oil must not exceed 180 \u00b0C<\/strong>. The same regulation sets two thresholds for oil quality\u2014 <strong>total polar matter (TPM)<\/strong> must not exceed <strong>25%<\/strong>, and <strong>the acid value<\/strong> must not exceed <strong>2.5 mg KOH\/g<\/strong>. Oil that exceeds these thresholds is considered waste and cannot be used.  <\/p>\n<table>\n<thead>\n<tr>\n<th>Temperature<\/th>\n<th>Temperature<\/th>\n<th>Time (approx.)<\/th>\n<th>Basket Capacity<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>7\u00d77<\/td>\n<td>175 \u00b0C<\/td>\n<td>2.5\u20133 min<\/td>\n<td>Half a pan<\/td>\n<\/tr>\n<tr>\n<td>9\u00d79<\/td>\n<td>175 \u00b0C<\/td>\n<td>3\u20133.5 min<\/td>\n<td>Half a tray<\/td>\n<\/tr>\n<tr>\n<td>9\u00d718<\/td>\n<td>175\u2013180 \u00b0C<\/td>\n<td>4\u20135 min<\/td>\n<td>1\/3 of the tray<\/td>\n<\/tr>\n<tr>\n<td>Apple slices<\/td>\n<td>175 \u00b0C<\/td>\n<td>3.5\u20134.5 min<\/td>\n<td>Half a basket<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Please do not fill the basket.<\/strong>  When frozen potatoes are added to the deep fryer, they cause the oil temperature to drop suddenly. If the basket is too full, the oil temperature drops below 150 \u00b0C; instead of frying, the potatoes soak up the oil, resulting in a soggy, greasy product. Rule of thumb: Fill <strong>the basket with about one-tenth of the oil\u2019s volume<\/strong>, and let the oil return to the proper temperature between batches.  <\/p>\n<h2>How many servings can you get from 1 kilo of frozen potatoes?<\/h2>\n<p>A standard restaurant serving <strong>of frozen food<\/strong> weighs between <strong>120 and 150 grams<\/strong>. If you calculate based on an average serving size of 130 grams, you\u2019ll get <strong>about 7.7 servings from 1 kilogram<\/strong>, about 19 servings from a 2.5-kilogram package, and about 96 servings from a 12.5-kilogram case. <\/p>\n<table>\n<thead>\n<tr>\n<th>Serving size<\/th>\n<th>2.5 kg package<\/th>\n<th>12.5 kg box (5 \u00d7 2.5)<\/th>\n<th>10 kg box (4\u00d72.5)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>120 g (side dish)<\/td>\n<td>~20 servings<\/td>\n<td>~104 servings<\/td>\n<td>~83 servings<\/td>\n<\/tr>\n<tr>\n<td>130 g (standard)<\/td>\n<td>~19 servings<\/td>\n<td>~96 servings<\/td>\n<td>~77 servings<\/td>\n<\/tr>\n<tr>\n<td>150 g (main course)<\/td>\n<td>~16 servings<\/td>\n<td>~83 servings<\/td>\n<td>~66 servings<\/td>\n<\/tr>\n<tr>\n<td>200 g (serves 2)<\/td>\n<td>~12 servings<\/td>\n<td>~62 servings<\/td>\n<td>~50 servings<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>This table shows the fastest way to calculate the cost per serving: divide the price per box by the number of servings, then add the cost of the oil. Businesses that treat potatoes as a \u201cside dish\u201d and don\u2019t factor them into their menu pricing are usually surprised when they realize they\u2019re consuming hundreds of kilograms of the product each month. <\/p>\n<h2>Why does oil consumption vary by sector?<\/h2>\n<p>This is because the surface area of the potato that comes into contact with oil increases rapidly as the slices get thinner. Whether you cut the same 1 kilogram of potatoes into 7\u00d77 or 9\u00d718 pieces, the weight remains the same\u2014but <strong>the total surface area of the 7\u00d77 pieces is roughly double<\/strong>. Since oil absorption is directly related to surface area, thin cuts absorb more oil during frying and also cause the oil to go rancid more quickly.  <\/p>\n<p>Practical conclusion: A kitchen that prepares food with thin cuts changes the oil more frequently than one that uses thick cuts. This is a cost item that can easily offset the difference in product cost of a few kuru\u015f per kilogram. For frying oil, 18-liter containers are the most operationally efficient\u2014 <a href=\"https:\/\/santralgida.com\/en\/urun\/frying-oil-frietta-18-lt\/\">Frita 18 LT<\/a>, <a href=\"https:\/\/santralgida.com\/en\/urun\/frying-oil-18-lt-turyag\/\">Turya\u011f 18 LT<\/a>, and <a href=\"https:\/\/santralgida.com\/en\/urun\/frying-oil-bizim-18-lt-ulker\/\">Bizim 18 LT<\/a> are common examples of this format. You can view the entire selection in <a href=\"https:\/\/santralgida.com\/en\/urun-kategori\/cooking-oils\/\">the cooking oils<\/a> category.   <\/p>\n<h2>Why are frozen potatoes cooked without being thawed first?<\/h2>\n<p>Frozen potatoes should go <strong>directly from the freezer into the deep fryer<\/strong>. The ice on the surface of thawed potatoes melts, releasing water, and this water causes two problems in the deep fryer: it lowers the oil\u2019s temperature more than necessary and accelerates the oil\u2019s oxidation. The result is both a soggy product and oil with a shorter shelf life.  <\/p>\n<p>Beyond that, potatoes that have thawed and refrozen also pose a food safety risk. If you see clumping in the packaging, ice crystals inside the bag, or sticks that have frozen together in blocks, it means the cold chain has been broken somewhere. Checking for these three signs upon delivery prevents most disputes over spoilage from arising later on.  <\/p>\n<p><strong>Storage:<\/strong> \u221218 \u00b0C or lower. The shelves near the freezer door are most susceptible to temperature fluctuations; store frozen potatoes on the back shelves and be sure to follow the first-in, first-out (FIFO) rule. <\/p>\n<h2>Should I buy one with a coating or without?<\/h2>\n<p>The second distinguishing feature of frozen potatoes <strong>is the coating<\/strong> applied after cutting. The uncoated product consists solely of boiled and pre-fried potatoes; the coated product features a thin, mostly starch-based layer on the sticks. This layer slows the release of moisture after frying\u2014meaning <strong>the potatoes stay crispy on the plate longer<\/strong>.  <\/p>\n<p>The decision depends on this question: How many minutes after the dish leaves the kitchen is it eaten?<\/p>\n<ul>\n<li>In scenarios where potatoes sit for 10\u201320 minutes\u2014such as <strong>takeout, courier delivery, or buffet service<\/strong> \u2014coated products make a noticeable difference.<\/li>\n<li><strong>With \u00e0 la carte service, where<\/strong>the food <strong>is served directly to the table<\/strong>, uncoated potatoes are usually sufficient and provide a more natural potato flavor.<\/li>\n<\/ul>\n<p>Battered items may take a few seconds longer to fry and use up the oil a bit faster; if the bulk of your menu isn\u2019t focused on takeout, opting for unbattered items is a reasonable choice.<\/p>\n<h2>When should you change the oil in your deep fryer?<\/h2>\n<p>Determine when to change the oil <strong>based on measurement, not the number of days<\/strong>. Since the threshold specified in the regulation is <strong> 25% total polar matter<\/strong>, the most practical way to measure this in the kitchen <strong>is using TPM test strips or a digital oil tester<\/strong>. The test strip provides results in a few seconds and can be presented as a record during an inspection.  <\/p>\n<p>If you don&#8217;t have a measuring device, these five signs are generally reliable enough:<\/p>\n<ol>\n<li><strong>Darkening of color<\/strong> \u2014 if the oil has turned tea-colored, you are nearing the limit.<\/li>\n<li><strong>Smoke point<\/strong> \u2014 If smoke appears at 175 \u00b0C, the oil has gone rancid.<\/li>\n<li><strong>Persistent foam<\/strong> \u2014 if the foam that forms when the product is added does not dissipate but remains on the surface.<\/li>\n<li><strong>A sharp, pungent odor<\/strong> \u2014an odor unrelated to the food being fried.<\/li>\n<li><strong>The product softens quickly<\/strong> \u2014if it doesn&#8217;t stay crispy at the same time and temperature.<\/li>\n<\/ol>\n<p><strong>Daily filtering<\/strong> is the single most effective practice for extending the life of the oil. Draining the oil at the end of a service shift and removing the debris at the bottom prevents any remaining particles from burning the oil overnight. Keeping the fryer at around 120 \u00b0C when not in use, or turning it off completely, also slows down oxidation.  <\/p>\n<h2>How much frozen potatoes should you order each week?<\/h2>\n<p>Start with a simple calculation: <strong>number of daily potato dishes \u00d7 serving weight \u00d7 number of service days<\/strong>. Divide the result by the box weight and add a 10% safety margin. <\/p>\n<table>\n<thead>\n<tr>\n<th>Business Profile<\/th>\n<th>Daily Potato Dish<\/th>\n<th>Weekly requirement (130 g)<\/th>\n<th>Weekly box (12.5 kg)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Caf\u00e9 \/ small bistro<\/td>\n<td>40<\/td>\n<td>~36 kg<\/td>\n<td>3 boxes<\/td>\n<\/tr>\n<tr>\n<td>Medium-sized restaurant<\/td>\n<td>120<\/td>\n<td>~109 kg<\/td>\n<td>9 boxes<\/td>\n<\/tr>\n<tr>\n<td>Fast-food restaurant<\/td>\n<td>250<\/td>\n<td>~228 kg<\/td>\n<td>19 boxes<\/td>\n<\/tr>\n<tr>\n<td>Hotel (buffet + \u00e0 la carte)<\/td>\n<td>180<\/td>\n<td>~164 kg<\/td>\n<td>14 boxes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A kitchen that receives a single delivery per week must store this amount; a kitchen that receives three deliveries per week can generate the same revenue with one-third the storage space. Storage space for frozen products is money\u2014a freezer represents both an investment and an electricity expense. This is exactly what we mean when we say that delivery frequency is a more decisive factor than price; we\u2019ve covered this topic in detail <a href=\"https:\/\/santralgida.com\/en\/how-to-choose-a-wholesale-food-supplier-a-guide-for-hotels-restaurants-and-cafes\/\">in our guide to choosing a wholesale food supplier<\/a>.  <\/p>\n<h2>Bonfrit Frozen Potato Varieties and Wholesale Supply<\/h2>\n<p>Santral G\u0131da\u2019s frozen potato product line includes four Bonfrit cuts. All four are produced to the same standard but are differentiated based on different culinary needs: <\/p>\n<ul>\n<li><a href=\"https:\/\/santralgida.com\/en\/urun\/frozen-potatoes-7x7-2-5-kg4-bonfrit\/\"><strong>Bonfrit 7\u00d77 \u2014 2.5 kg \u00d7 4 boxes<\/strong><\/a> \u00b7 For kitchens where thin-cut, fast service, and crispiness in takeout orders are a priority.<\/li>\n<li><a href=\"https:\/\/santralgida.com\/en\/urun\/frozen-potatoes-9x9-2-5-kg-5-bonfrit\/\"><strong>Bonfrit 9\u00d79 \u2014 2.5 kg \u00d7 5 boxes<\/strong><\/a> \u00b7 Classic finger-cut potatoes; the most balanced choice if you\u2019re working with a single cut.<\/li>\n<li><a href=\"https:\/\/santralgida.com\/en\/urun\/frozen-potato-918-25kg5-bonfrit\/\"><strong>Bonfrit 9\u00d718 \u2014 2.5 kg \u00d7 5 boxes<\/strong><\/a> \u00b7 Thick-cut; perfect for plating burgers and steaks.<\/li>\n<li><a href=\"https:\/\/santralgida.com\/en\/urun\/frozen-apple-slice-potatoes-2-5-kg-5-bonfrit\/\"><strong>Bonfrit Apple Slices \u2014 2.5 kg \u00d7 5 boxes<\/strong><\/a> \u00b7 Rustic slices with skin; ideal for breakfast and brunch menus.<\/li>\n<\/ul>\n<p>For businesses looking for an alternative brand, <a href=\"https:\/\/santralgida.com\/en\/urun\/frozen-potato-99-pompat-kg\/\">Pompat is available in the product line as a 9\u00d79<\/a> -kilogram option.<\/p>\n<p><em>A quick note:<\/em> During searches, the Bonfrit brand name is often spelled differently, such as <strong>&#8220;bonfirit&#8221;<\/strong> or <strong>&#8220;bonfrit<\/strong>. <strong>&#8220;<\/strong> Both refer to the same brand; both spellings may appear in product codes. <\/p>\n<h3>Other frozen foods that share the same fryer<\/h3>\n<p>When ordering frozen potatoes, most kitchens also plan for other products that are prepared on the same frying line:<\/p>\n<ul>\n<li><a href=\"https:\/\/santralgida.com\/en\/urun\/frozen-potato-croquette-ball-1-10-sampa\/\">Potato croquettes (round<\/a> and <a href=\"https:\/\/santralgida.com\/en\/urun\/frozen-potato-croquette-cylinder-1-10-sanpa\/\">cylindrical)<\/a> \u2014 are in high demand at buffets and on children\u2019s menus.<\/li>\n<li><a href=\"https:\/\/santralgida.com\/en\/urun\/frozen-onion-rings-18-sanpa\/\">Frozen onion rings<\/a> \u2014the natural complement to fries on burger menus.<\/li>\n<\/ul>\n<p>All of them are listed in the <a href=\"https:\/\/santralgida.com\/en\/urun-kategori\/frozen-foods\/\">frozen foods<\/a> category.<\/p>\n<h2>Three Questions to Help You Choose the Right Cut<\/h2>\n<ol>\n<li><strong>How many seconds does it take for the product to reach the plate?<\/strong>  If you&#8217;re ordering delivery or have a long drive ahead, choose the thick-cut (9\u00d718) option\u2014the thin-cut will get soggy on the way.<\/li>\n<li><strong>How many different cuts can you carry?<\/strong>  In kitchens with a single freezer, a 9\u00d79 tray can hold the entire menu on its own; if you can accommodate two trays, 9\u00d79 + 9\u00d718 is the most common combination.<\/li>\n<li><strong>How often do you change your oil?<\/strong>  If you find yourself having to change the oil frequently, switching from fine-grade to heavy-grade oil creates a cost-saving opportunity, regardless of the product&#8217;s price.<\/li>\n<\/ol>\n<h2>Wholesale Supply of Frozen Potatoes in Istanbul<\/h2>\n<p>Santral G\u0131da has been supplying wholesale food to hotels, restaurants, cafes, bakeries, and institutional food service businesses in Istanbul since 1995. Frozen products are delivered <strong>6 days a week to all 39 districts of Istanbul<\/strong> via our own cold-chain fleet\u2014so you don\u2019t have to restock frozen potatoes just once a week. <\/p>\n<p>To review our products, you can select items <a href=\"https:\/\/santralgida.com\/katalog\/\">from our interactive catalog<\/a> and create a quote list. Prices are provided on a quote basis depending on your business and the quantity; we do not sell to individual customers. <\/p>\n<p><a href=\"https:\/\/santralgida.com\/en\/contact-us\/\"><strong>Get a wholesale price quote for frozen potatoes \u2192<\/strong><\/a> Share your approximate weekly quantity and preferred cut, and we\u2019ll prepare a custom price list for you. Phone: 0212 614 74 80 \u00b7 WhatsApp: 0533 788 55 76 \u00b7 sales@santralgida.com <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Differences between 7\u00d77, 9\u00d79, and 9\u00d718 cuts; fryer temperature and cooking time; how many servings per kilogram; and weekly case calculations\u2014a guide to frozen potatoes for professional kitchens.<\/p>\n","protected":false},"author":2,"featured_media":10250,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"class_list":["post-10249","post","type-post","status-publish","format-standard","has-post-thumbnail","category-tips-suggestions"],"_links":{"self":[{"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/posts\/10249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/comments?post=10249"}],"version-history":[{"count":0,"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/posts\/10249\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/media\/10250"}],"wp:attachment":[{"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/media?parent=10249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/categories?post=10249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/santralgida.com\/en\/wp-json\/wp\/v2\/tags?post=10249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}