Because of its capacity to be freeze-dried and reconstituted, agar is considered a “physical jelly” (that is, a jelly that sets and melts with temperature changes without needing any additives). This property makes dry agar easy to ship and preserve for long periods of time.5
You can listen to the full interview with Baroness Kidron on BBC Radio 4 at 17:30 GMT on Saturday on or BBC Sounds.。业内人士推荐WPS下载最新地址作为进阶阅读
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