mason jar
C1informal, domestic, hobbyist
Definition
Meaning
A glass jar with a wide mouth and a screw-on lid, used for home canning and preserving.
A versatile glass jar, often with a two-part lid (a flat metal disc and a screw band), originally designed for food preservation but now widely used for storage, crafts, and as drinkware.
Linguistics
Semantic Notes
The term refers specifically to the brand and design (with a threaded neck and a two-part lid) that became generic. It evokes notions of DIY, homesteading, and rustic simplicity. It is often conflated with the concept of 'preserving jar' or 'canning jar'.
Dialectal Variation
British vs American Usage
Differences
More commonly used and recognized in American English. In British English, 'Kilner jar' is a common brand-specific equivalent.
Connotations
In AmE: strongly associated with home canning, DIY, Pinterest crafts, and rustic decor. In BrE: may be recognized but lacks the same deep cultural embedding; 'Kilner jar' carries similar connotations.
Frequency
High frequency in AmE, especially in domestic/DIY contexts. Moderate to low frequency in BrE, where 'jar' or brand names are more common.
Vocabulary
Collocations
Grammar
Valency Patterns
[put/pour] + [object] + into a mason jar[use/repurpose] + a mason jar + as + [object][seal/close] + a mason jar + [tightly/securely]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[to have] a screw loose like a mason jar lid (humorous, informal)”
- “[life is] not all pickles in a mason jar (i.e., not always sweet/preserved)”
Usage
Context Usage
Business
Used in marketing for homeware, DIY supplies, and rustic-themed products.
Academic
Rare; might appear in historical or sociological texts about domestic practices.
Everyday
Common in conversations about cooking, storage, crafts, and home decor.
Technical
Used in guides on home canning, food safety, and preservation techniques.
Examples
By Part of Speech
verb
British English
- We need to mason-jar these chutneys before winter. (rare, non-standard)
- She spent the afternoon mason jarring the summer fruits. (rare)
American English
- I'm going to mason jar this salsa. (informal)
- They mason-jarred enough tomatoes to last a year. (informal)
adjective
British English
- She loved the mason-jar aesthetic for the wedding. (informal)
- It was a very mason-jar chic decoration. (informal)
American English
- The mason-jar lifestyle is all about self-sufficiency.
- He brought a mason-jar salad to work.
Examples
By CEFR Level
- I put my pencils in a mason jar.
- The cookies are in a big mason jar.
- She uses mason jars to store her homemade jam.
- We bought some new mason jars for the kitchen.
- After picking strawberries, we spent the afternoon filling mason jars for preserves.
- The trendy café served smoothies in half-litre mason jars.
- The resurgence of the mason jar in hipster culture has transformed it from a humble preserving vessel into a multi-purpose design icon.
- To ensure a proper seal, sterilise the mason jars and lids in boiling water before filling them with the hot relish.
Learning
Memory Aids
Mnemonic
Think of a MASON (builder) building a stone wall to store things. A MASON JAR is a 'built' (strong) glass wall for storing your homemade goods.
Conceptual Metaphor
CONTAINER FOR TRADITION/HOMEMADE GOODNESS (e.g., 'She shared the mason jar of her grandmother's wisdom' implies preserving tradition).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation as 'масонская банка' (suggests Freemasons). Use 'банка для консервирования' or simply 'стеклянная банка'.
- The word 'mason' here is a surname (John L. Mason, inventor), not the profession.
Common Mistakes
- Incorrect plural: 'masons jars' (correct: 'mason jars').
- Using it for any glass jar (e.g., a jam jar with a pop lid is not typically called a mason jar).
Practice
Quiz
What is the primary original purpose of a mason jar?
FAQ
Frequently Asked Questions
The flat sealing disc is designed for one-time use in canning to ensure a safe vacuum seal. The screw bands can be reused if not rusted.
A mason jar has a specifically threaded neck designed to work with a two-part canning lid (flat disc + screw band) for creating an airtight seal during preservation.
They are named after John Landis Mason, an American tinsmith who patented the design in 1858.
No, they come in standard sizes like half-pint, pint, quart, and half-gallon, but thread sizes are generally standardized within a region.