HH is a retired former housewife who lives in Westergellersen, a small village in northern Germany.
“Frauen sollten kein Gemüse einkochen wenn sie ihre Regel haben. Die Gläser werden dann nicht richtig schließen.”
Women shouldn’t be canning any vegetables while they’re on their period. If they do, the jars won’t close right.
There are many superstitions about the female menstrual cycle, many delineating the things women should and shouldn’t do while they are actively menstruating. The informant does not recall any further logic behind the superstition, only that the jars won’t seal correctly. Given that canning is largely seen as women’s work, and that having a good seal on the jars is vitally important for the long-term preservation of the food, it does seem reasonable that a superstition around women’s bodies would be connected to this important facet of women’s work.
Given that this is a superstition, and therefore a magical folk belief, this belief would fall under the umbrella of Sympathetic Magic, specifically Homeopathic. My interpretation of the metaphor involved in this magical belief is that if the woman canning is menstruating, her body is momentarily shedding bodily substances and fluids, rather than how she is ‘sealed’ during the rest of her cycle. So, a woman must be ‘sealed’ herself while canning, otherwise the ‘unsealed’ trait of her body would metaphorically translate to the jar, not letting it properly seal.