Methamphetamine Pipe Melt & Cut Residue Behaviour Reference

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Methamphetamine Melt & Residue Behaviour Reference

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1. PURE METHAMPHETAMINE (HCl)

Melt Characteristics:

Liquefies instantly with gentle heat.

Fully transparent liquid — no cloudiness.

Thin, watery melt that moves rapidly across glass.

Minimal bubbling; any bubbles pop immediately.

Forms a uniform melt pool with no unmelted patches.


Residue Characteristics:

Recrystallises into clear, needle-like shards.

No fog, chalk, or powdery film.

After full vapourisation: almost no residue.

Brown or black marks only occur from overheating.


Decomposition Clues:

Overheating produces sharp ammonia-like smell and brown streaks.

Pure MA does not caramelise unless exposed to excessive heat.


2. MSM (Methylsulfonylmethane) Melt Behaviour:

Melts slower than MA.

Melt is thick and syrupy.

Cloudy melt with persistent bubbles.

Moves sluggishly.


Residue Behaviour:

Leaves white crystalline residue that doesn’t fully liquefy again.

Chalky recrystallisation.

Fogging on glass builds over multiple cycles.


Decomposition:

Forms a persistent white film rather than caramelising.


3. Sugars (Glucose, Lactose, etc.) Melt Behaviour:

Thick, sometimes yellowish melt.

Caramelises easily.

Sticky and uneven melt pool.


Residue Behaviour:

Brown or black tar spots even at low heat.

Sticky residue that cannot recrystallise.


Decomposition:

Sweet-burnt smell.


4. Isopropylbenzylamine (iPBA) Melt Behaviour:

Higher melt temperature than MA.

Thicker melt, slightly opaque.

Moves sluggishly — forms globs.


Residue Behaviour:

Opaque, chunky recrystallisation.

White granular crust after vapourising.


Decomposition:

Harsh chemical or plasticky smell.

Grit-like residue.


5. Caffeine Melt Behaviour:

Does not fully melt.

Frothy, uneven bubbling.

Yellowish or brownish melt.


Residue Behaviour:

Brown crust.

No recrystallisation.


Decomposition:

Bitter, burnt smell.


6. Lidocaine (and similar local anaesthetics) Melt Behaviour:

Oily, thick melt.

Aggressive bubbling.

Hazy liquid that never turns clear.


Residue Behaviour:

Waxy coating.

Opaque plate-like recrystallisation.


Decomposition:

Plastic/electrical burn smell.


7. Ephedrine / Pseudoephedrine Contamination Melt Behaviour:

Melts slower than MA.

Slightly yellow melt.

Longer-lasting bubbles.


Residue Behaviour:

Yellowish film.

Mixed clear + cloudy recrystallisation.


Decomposition:

Sharp medicinal smell.


8. Industrial / Unknown Contaminants Melt Behaviour:

Unpredictable melt.

Strong bubbling.

Multi-coloured or tan melt.


Residue Behaviour:

Sticky patches.

Pitting of glass.

Multi-colour crust.


Decomposition:

Harsh solvent or burnt-plastic smell.


9. Purity Levels — Quick Visual Diagnostics Excellent Purity:

Clear melt

Fast, thin movement

Glass-clear recrystallisation

Minimal residue


Medium Purity:

Slightly cloudy melt

Slower movement

Patchy recrystallisation

Light fogging


Heavily Cut:

Thick or sticky melt

Persistent bubbles

White or brown residue

Cloudy recrystallisation

Tar spots


Fake Shard / iPBA Indicators:

High melt temperature

Opaque melt

Chunky recrystallisation

Intense chemical smell


10. Behaviour Patterns That Always Signal Impurities

Caramelisation = sugars or overheated organic cuts.

White crust that won’t melt = MSM or iPBA.

Sticky brown patches at low heat = sugar cuts.

Opaque melt = heavy adulterants.

Foaming = caffeine or lidocaine.

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