SEOH Plastic Hexagonal Weigh Boats Micro Dish 100pk

I needed containers for "mise en place", and for years I have been using a bunch of glass custard cups. The problem was, these cups weigh around 170 grams, and as I've become more inclined towards the modernist style of cooking, my recipes call for ingredients weighing in at anywhere from a couple grams to a few tenths of a gram. Heavy glass bowls are simply no good for this.These "weigh boats" are the perfect solution. They are light weight (the micro size weigh in at about .5 grams), sturdy enough to fill without fear of spilling, and disposable. For reference, the medium weigh boats hold approximately 20 grams of light powder, whereas these micro boats will hold about 2-3 grams without piling the ingredient high above the rim.They are small enough to fit easily on a small jeweler's scale (Like this one: http://smile.amazon.com/American-Weigh-0-01g-Digital-Scale/dp/B0012LOQUQ/) and still let you read the display. Now I use the small weigh boats for tiny amounts, these medium boats for between 3 and 20 g, and the glass cups for anything larger.Overall I am very, very satisfied with this purchase.

I bought these for an unconventional reason, so I'll talk about that, but I wanted this review to be useful for people who wanted to use these as weighing boats, as well, so I'll also offer some comments regarding that use.I recently got a set of nail art brushes. These are items that won't fit down into traditional nail polish bottles. So I needed little trays, preferably something disposable, to pour a bit of polish out into so I could use the nail art brushes. Since I spent six years in chemistry graduate school, plastic weighing boats immediately came to mind. These were the smallest ones I could find, which meant I would be wasting the least amount of polish possible. And they definitely work for that purpose. They're big enough to move a nail fan brush around in, but they also work for just dotting tools. You can use a separate one for each color and throw them away afterwards (yay for a no-mess cleanup). In a similar vein, you could probably also use these for mixing small amounts of paint.These also work for weighing small amounts of substances (I checked, using stuff like flour and sugar I found in my kitchen). They would really only be suitable for microscale synthesis experiments or maybe preparing solutions of standards for liquid chromatography or a similar analytical method because the bottoms are only a little bigger in area than a US quarter. They are made of a material with the same finish as practically every other weighing boat I've ever used. They're pretty lightweight, but that's really what you want in a weighing boat.

Uneven shape, some edges longer than others. Tiny pieces (slivers/needles/shards?) of plastic in between each weigh boat? No thanks... I don't need. This is a MASS produced product made with low low low quality plastic. Quality control non-existent.These look *like* actual weigh boats, but they are thin thin thin "plastic" and should not be used for ANYTHING. Not safe.There is plastic coming off of the plastic. You will contaminate your sample of whatever it is you are trying to weigh with excess plastic.Do. Not. Buy. SEOH

If you're wanting cheap little weighing boats then these perfectly fit your requirements.I wanted these as a substitute to the included weighing pan with the as they provide substantially larger surface area, depth, & volume.If you're able to reuse the same boat over & over this will probably last you forever for just $6I was curious though on how consistent the weight of these boats are from boat to boat. Testing repeatability of my scale I placed the exact same boat in the exact same place and repeatability was fairly good only varying around ~.003 grams. Making this more difficult though is that the boats are not symmetrical as the width of the edges clearly vary.My method to test their weight consistency was to take a stack of boats and put them all in the same orientation - wide edge to wide edge / thin edge to thin edge. Then I would place a single boat on the scale, let it settle, remove it let it rest to zero and then repeat. I did this for about a dozen boats. Every 3 or 4 boats i would pull an earlier one to see if it still measured within .003 grams of its original weight and they all did.I ended up finding a variation from .460 grams to .550 grams. Depending on what you are measuring this is a fairly huge variance.So you do not want to tare 1 boat once and then measure multiple different boats already loaded. Tare each fresh boat before loading.

The "micro" dish is listed has having a capacity of 20ml, but I measured it to be less than 8ml. In practice I can comfortably get only about a teaspoon (5ml) of powder in it (around 3g of most powders I've tried), and I judged it to be full with less than 8g of tap water in it.Some powders slide right off the surface, but some powders cling. Of the clingy powders I've tried, I can say they cling a lot less to these dishes than they do to my metal spoons.Otherwise they are sturdy and, for my needs, quite reusable.