azenta.com Consumables & Instruments How Efficient is Your Lab? Part II - Optimise Storage Density with Sample Tubes WHITE PAPERConsumables & Instruments | White Paper Introduction Are you running out of -80°C freezer space? Laboratories typically store biological samples in much larger sized tubes than is necessary given the actual volume of samples stored. This leads to the potential for your upright freezer to store up to 141% more samples. It is common for a laboratory to be using 2.0ml cryo tubes when storing typical volumes of 1.0ml or 0.5ml of sample. Such excessive air space, which well exceeds the expanse required by frozen aqueous solutions (see: ‘How Safe Are Your Samples: Part II – Working Volume), is inefficient in its use of storage space within an upright freezer. Given

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