How the Five Compare on the Numbers
A weekend of baking is two bannetons and a starter jar going at the same time, so the question is how much one mat holds at once. Three of these five answer it in units you can count. The other two publish two dimensions and leave the arithmetic to you, which on a heated mat is not the same thing at all.
Friheten states four sourdough glass jars or two banneton baskets at the same time. Lapert states its box fits a half size baking sheet pan. sproerden states jars, and states two different jar ranges in two places. Folksy publishes 36 by 24 inches of silicone and no count. volikos publishes 28 by 20 inches and no count either.
What the table cannot do is convert between the two kinds of figure. A 12 by 12 inch heated square that holds four jars and a 36 by 24 inch silicone sheet that holds nothing hot are answers to different questions. The only fair comparison inside each kind is the count, and only Friheten and Lapert give one.
Capacity Stated in Things You Can Count
Four Jars, or Two Baskets
Friheten publishes the only countable capacity for a heated mat among these five: a large heating area that can warm four sourdough glass jars or two banneton bread proofing baskets at the same time. Its published size is 12 by 12 by 1 inches, and it names graphene heating that it states is three times faster than normal ones.
What it does not publish is a temperature. Both other heated picks give a range: Lapert 59 to 140 degrees Fahrenheit, and sproerden 65 to 110 held to 1 degree. Friheten publishes a capacity and a speed and no number for the heat itself, so the one figure that decides whether a starter rises is missing from the listing that holds the most jars.
A Half Sheet Pan in a Box
Lapert states its capacity in the unit a baker actually uses. The 21 by 15.5 by 9.5 inch bread proofing box is stated to fit a half size baking sheet pan perfectly, and the purchase is a warming mat plus the box rather than a bare pad. Its mat is published at 20 by 15 inches and its range at 59 to 140 degrees Fahrenheit.
Lapert publishes 2.84 pounds, the heaviest of these five, which is about right for a box and a mat together. It also publishes the reason for the box, that an enclosed space holds the temperature more stably than a separate warming mat, and names Oxford cloth with lattice insulation as what keeps the box standing up rather than collapsing.
When One Listing Gives Two Answers
Twenty Four to Forty, or Sixteen to Forty
sproerden publishes two different jar ranges in one listing. The title says it fits 24 to 40 oz jars. A feature bullet says it works with 16 to 40 oz jars. The mat is 5.5 by 7 by 1.18 inches, which is a single jar footprint, so the lower bound is the figure that decides whether your starter jar sits on it or overhangs.
The listing is otherwise the most precise heated mat here. It publishes 65 to 110 degrees Fahrenheit held to 1 degree, a 24 hour timer with memory, overheat protection and auto shut-off, and states plainly that the jars are not included. It also states it is more stable than USB warmers, which nothing else in this pool mentions.
A Mat Size and a Box Size
Lapert publishes two sizes and they describe two objects. Its size field reads 20 by 15 inches, which is the warming mat, and its first bullet reads 21 by 15.5 by 9.5 inches, which is the box the mat sits inside. Neither figure is wrong and neither is labeled, so a reader comparing it with a bare mat is comparing the wrong number.
The other heated picks are simpler to read. Friheten publishes 12 by 12 by 1 inches for the pad itself. sproerden publishes 5.5 by 7 by 1.18 inches. Neither ships anything the figure might be confused with. Lapert is the only pick where a box and a mat arrive together, which is why it is also the only one that needs two sizes.
The Silicone Mats Are a Different Product
Area Is the Only Capacity They Publish
For the silicone mats, capacity is the work surface and nothing else. Folksy publishes 36 by 24 inches and volikos publishes 28 by 20 inches, and neither states how many loaves or jars that is. Folksy gives 36 against 28 on one axis and 24 against 20 on the other, which on a counter is the difference between kneading a double batch and kneading one.
Both publish a weight and the two are almost identical: Folksy 1.12 pounds and volikos 1.1 pounds. For sheets of 36 by 24 inches and 28 by 20 inches, that makes the volikos silicone heavier per square inch, which follows from its thickness of 1.1 mm against Folksy’s 0.7 mm. It is the only place these two listings genuinely disagree about materials.
Thickness Is Where They Actually Compete
Among the silicone picks the published figure that varies most is thickness, and it is the one a baker feels. volikos publishes 1.1 mm with a 5 mm edge height. Folksy publishes 0.7 mm and states that is almost twice as thick as the 0.4 mm it compares itself against, without naming whose 0.4 mm mat that is.
The two make different claims about the material. volikos states the extra thickness keeps the mat in place during vigorous kneading and adds a raised 5 mm edge, and states it can be rinsed in warm soapy water or put in the dishwasher. Folksy states 0.7 mm stops the mat wrinkling on the table and offers only a cloth, with no machine permission either way.
Which One Fits Your Kitchen
You proof several jars at once. Friheten publishes a heating area stated to warm four sourdough glass jars or two banneton baskets at the same time, on a 12 by 12 by 1 inch graphene pad it says heats three times faster than normal ones.
You proof a whole sheet pan of rolls. Lapert publishes a 21 by 15.5 by 9.5 inch insulated box stated to fit a half size baking sheet pan, with a mat at 20 by 15 inches and an adjustable range of 59 to 140 degrees Fahrenheit.
You are keeping one starter alive. sproerden publishes 65 to 110 degrees Fahrenheit held to 1 degree on a 5.5 by 7 inch pad, with a 24 hour timer and memory. It states jars are not included and gives two different jar ranges.
You knead on the counter and need the room. Folksy publishes 36 by 24 inches of 0.7 mm silicone rated from minus 30 to 470 degrees Fahrenheit, with measurements printed on it and a non-slip back. It publishes 1.12 pounds.
You want the thicker mat with an edge. volikos publishes 28 by 20 inches at 1.1 mm with a 5 mm edge height, metric and inch guides, pie circles, and a permission to put it in the dishwasher.
What We Could Not Verify
Every figure above is a manufacturer’s own published number or sentence. These are the things we went looking for across these five listings and did not find.
- A temperature range from Friheten, the only heated pick that publishes a capacity and no heat figure.
- Which of the two jar ranges sproerden means, since the title says 24 to 40 oz and a bullet says 16 to 40.
- A thickness from any of the three heated picks, none of which publishes one.
- A weight for Friheten, which publishes none at all.
- A wattage from any of the three heated picks.
- A published capacity for either silicone mat, neither of which states a loaf count or a dough weight.
