RSVP's clear round glass spice jars are a standard size (4" x 1-3/4" dia.) with screw-on chromed steel lids and plastic shaker inserts. Replacement jars for RSVP's Hanging Spice Rack and Countertop Spice Rack.
These have been a godsend for not only my own spice cabinet and dining table, but for making custom spice and herb blends as gifts for friends.
At three ounces this these jars are the perfect size because if they were larger some of the spices and herbs would lose their potency before fully consumed. If smaller they would be great for a single dish preparation, but probably not much more. If you are seeking jars for mise en place use in the kitchen I recommend that you consider Libbey Just Tasting Square Bowl Set instead.
The shaker inserts are a nice touch for condiments, especially the finer ground ones like cumin or ground pepper. For some herbs or coarser herbs the holes are a bit too small. I love the glass and stainless steel construction because they are easy to clean and sanitize, and the threads mate well for a tight seal. I have not experienced any difficulty screwing or unscrewing the lids, but the key to that is to make sure that the rims of the jars are absolutely clean after you fill them. Any spice or other substance left on those areas could harden and make removing the caps difficult.
One final thought: you may want to order more than one set because a mere six will get used up in a hurry - especially if you are like me and are mixing custom blends for friends.
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