Biology — Food Preservation
How preservation methods limit microbial growth.
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digraph Preservation {
node [shape=box, style=rounded];
"Limit microbial growth" -> "Refrigeration / freezing";
"Limit microbial growth" -> "Canning (heat + seal)";
"Limit microbial growth" -> "Drying / salting";
"Limit microbial growth" -> "Pickling (low pH)";
}