The fundamental idea behind keeping spring pipes in good condition is to keep the moisture content of the main material (Briar pipe, for example) stable, so that big changes in humidity don’t damage it.
Spring humidity levels vary widely between North and South, and require different maintenance strategies: in the humid South, the focus is on preventing mold, swelling and acidity; in the dry North, the focus is on preventing cracking, shrinkage and embrittlement.
The best storage conditions for briar pipes are: Relative humidity 45%-55%, temperature 18-24°C and consistent wood moisture content of 6%-8%. All maintenance methods should be centered around these principles.

CHAPTER 01: South | Before Smoking: Minimize moisture intake and control humidity at source.
Tobacco “awakening” (airing out) should be complete: Natural airing has no effect in high-humidity surroundings; loading wet tobacco directly into the bowl generates a rush of moisture vapor and acidic smoke during the session, and the bowl walls are constantly absorbing moisture.
Be careful when opening tins: Don’t open tobacco tins in humid conditions (such as the wet season of “Return of the South” or rainy days) to keep humid air out. Hands must be clean and dry to avoid adding moisture when opening tins. After Smoking: Allow the pipe to cool completely, then empty the airway and bowl with a dry pipe cleaner, repeatedly absorbing the condensate and tars until the cleaner comes out clean. Soft paper for a gentle clean of the inner bowl walls of ash and tobacco residue. Clean and detach the stem from the shank, this will increase the airflow through the airway. Air-dry the pipe in the shade for at least 24 hours. Follow a strict pipe rotation schedule. Never smoke the same pipe two times in a row.

Dehumidification by exposure to high sunshine creates a steep moisture gradient between the interior and exterior wood, resulting in cracking, blistering of finishes, and wood deformation. 02 The North · NORTH – Northern springtime are windy and dry with very little humidity.
The major dangers include: shrinkage of the wood and cracks in the bowl and shank; loose tenon-mortise joints; brittle stems; and flaking of the carbon cake. Don’t over-dry the tobacco: Because of the dry spring climate, pipe tobacco doesn’t need to be aired out for too long. Just rub it out once you take it out of the sealed jar and give it 1-3 minutes to sit. If it is dried too much the pipe will become hot when you smoke and the wood will dehydrate more and there is a chance of the bowl walls cracking.
Do not expose to strong winds or high heat as this can cause quick moisture loss and unequal contraction of the inner and outer wood which can lead to breaking.
Adequate rest: Keep the pipe in a cold, dark place. Leave the stem to rest for a minimum of 24 hours, it does not need to be fully detached from the shank. Multiple pipes on a strict rotation schedule to minimize temperature shock and frequency of moisture loss for any single pipe.

Wood swells in localized areas when exposed to water . If the wood is then exposed to a dry environment there is a double risk of cracking .