We check each single coaster before packaging for your order to ensure quality. This does take a lot of time. A single is just that - one coaster. If you want a pack of four, you need to load four singles to your order.
A full case of 100 coasters. We do not process these for QA so there may be some imperfections. However, these have had a high quality percentage. I would expect no more than 5 coasters in each box of 100 to be flawed.
Re: resin - the factory has an FDA certificate indicating the boards have been tested and are food safe, which I’m happy to share upon request. My research indicates that resin can be used for cutting boards but would advise to not do heavy chopping. I would encourage you to do your own research if you have concerns.
Follow Making Blank or Making Blank Group on Facebook for updates on the boards, ideas for how to use them, and engraving settings. For the Glowforge, so far I've liked 1000 speed, 100 power, 270 LPI.
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