How to distinguish purple heart sweet potato

How to distinguish purple heart sweet potato
Summary: Can distinguish through the sense of smell, if purple is added into by the day after tomorrow, there is a kind of special smell. In addition, know the maldistribution in purple heart sweet potato color injected, the color outside is too bright, the color inside is comparatively comparatively dull.
Distinguish the purple heart sweet potato can be distinguished from two respects:
The first is a appearance, the normal appearance color of sweet potato of purple heart is pale red, purple the more inside that inside is, the darker a color is, the sweet potato heart has the deepest color;
Second, can distinguish through the sense of smell, if purple is added into by the day after tomorrow, there is a kind of special smell. In addition, know the maldistribution in purple heart sweet potato color injected, the color outside is too bright, the color inside is comparatively comparatively dull.
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