Winter cod in shallow kelp bays are a special kind of fight: powerful takes in tight water, sudden runs through weed and rocks, and that stubborn way they hug structure. Over the years I’ve learned that a properly built microchum slick will hold a bait in the kelp fringe long enough to tempt these cod without snagging every other cast. Below I’ll walk you through how I rig mine, why I choose each component, and the little habits that turn frustrating sessions into steady hook-ups.

What is a microchum slick and when I use it

Microchum is essentially a compact chum bundle—small, oily, and highly aromatic—that creates a scent trail and concentrates small baitfish near your hook. The “slick” refers to the way I present it: streamlined and close to the seabed so it stays in the kelp canopy where cod feed in winter. I reach for this setup when water is cold, visibility is low, and cod are occupying shallow bays or kelp beds rather than deep gullies.

Why this approach works in shallow kelp bays

In winter, kelp bays are feeding grounds — crustaceans and small fish shelter the weed, and cod cruise the edges. A bulky chum pot or floating slick often gets tangled or disperses too quickly. Microchum presents a concentrated scent without a large profile, keeping fish focused on the baited area and allowing me to fish subtly among the kelp without constant fouling.

My go-to tackle and materials

Here’s what I pack for a microchum slick session. I keep it compact so rig changes on the bank are quick.

Item Why I use it
Rod: 12–13ft surf rod (10–15oz) Long enough for good control and to cast beyond the kelp edge; enough power to pull cod from weed.
Reel: 6000–8000 size spinning reel Large spool for smooth casting and to handle long runs.
Mainline: 20–30lb braid Low stretch for better bite detection and to cut through kelp resistance.
Shock leader: 60–80lb mono (8–10ft) Protects against abrasion from kelp and rocks and adds a little stretch to absorb big hits.
Hooklink: 30–40lb fluorocarbon, 18–24in Less visible in water, abrasion resistant and sinks into the kelp zone.
Hook: 3/0–5/0 wide gape, strong point (e.g. Owner STX-55) Wide gape for big baits; needle-sharp and durable for hard-mouthed cod.
Microchum: small flaked fish mix, fish oil, minced sandeel Concentrated, oily, and small-particle to spread scent without bulk.
Chum sock/mesh: 4–6cm diameter mesh tube Holds microchum compactly; releases scent slowly.
Weight: 3–6oz inline lead or bomb Enough to anchor the slick near the bottom but low profile to avoid snagging.
Beads & swivel Protects knot, adds a little buffer and prevents line twist.

Step-by-step rigging

Below is my exact sequence when tying a microchum slick. I keep it simple so it’s repeatable on the bank when the light’s fading.

  • Tie your mainline to the reel and check drag: braid to reel spool, set a smooth but firm drag—cod fight hard and the drag should not free-spool during a run.
  • Attach the shock leader to the braid with a double uni or Albright knot. I use 8–10ft of 60–80lb mono. This length keeps the hooklink away from the braid knot and reduces abrasion risk.
  • Slide a bead then a robust swivel onto the shock leader, then tie a short dropper loop or use a small pumice/split ring to take a microchum sock. The bead protects the knot from the swivel during cast and retrieval.
  • Attach the weight inline below the swivel. I prefer a torpedo or small bomb of 3–6oz. The weight sits mid-line and keeps the microchum near the bottom without being an obstruction on the hooklink.
  • Tie a 18–24in fluorocarbon hooklink to the swivel with a loop-to-loop or a small knot. Fluorocarbon of 30–40lb is a sweet spot—strong, abrasion resistant, and sinks into weed.
  • Hook choice matters: 3/0–5/0 wide-gape strong hooks for whole sandeel or squid strips. I use slightly upsized hooks in heavy kelp so the point stays free and penetrates despite weed resistance.
  • Make your microchum: I mix flaked mackerel, minced sandeel, a splash of fish oil and a handful of commercial chum powder (e.g. Dynamite Baits oily mix) until it’s sticky but not paste-like. Pack it tightly into a small mesh tube and seal the ends with a zip-tie or a tight knot.
  • Attach the filled mesh sock to the dropper loop or split ring so it sits just above the weight, trailing slightly back from the hook and bait. The idea is scent arriving in the zone the hook is sitting, not overwhelming it.

    • Bait presentation and casting tips

    I usually fish whole sandeel or small whole mackerel strips on this rig. Keep baits compact: whole sandeels are ideal because they lie naturally in the kelp and don’t balloon like chunks. Thread the bait on the hook so the point is exposed — that helps with hook-up rates when cod suck in the bait and head for the weed.

    Cast beyond the kelp fringe, let the rig settle, then slowly retrieve or hold position so the microchum slick drifts into the kelp edge. If tide is incoming, cast ahead of the slick so the current carries scent towards the weed. If the tide is outgoing, aim just inside the kelp fringe so the scent pulls fish outwards toward your bait.

    Detecting bites and fighting fish in kelp

    Cod takes can be subtle at first—small tugs then a heavy pull as they root in the weed. With braid and a short rod, I feel everything. If you get a gentle tap, wait a heartbeat before setting the hook; winter cod often mouth the bait before committing. When you do set, strike firmly and follow up to keep pressure and prevent the fish diving back into the kelp.

    If you get wrapped in weed during the fight, don’t panic—apply steady pressure and reel while pointing the rod tip at the fish’s head to steer it away from heavy coverage. A few quick bursts and easing the drag can dislodge kelp without snapping gear.

    Handling, care and site ethics

    Once landed, handle cod with wet hands and unhook gently—many are released during winter to protect spawning stock. If you keep fish, bleed and chill quickly. Always avoid dragging gear across the kelp beds and pack out any mesh, leaders or bait debris. I make a point of leaving the shore cleaner than I found it—local spots are fragile and vanish fast under pressure.

    Quick troubleshooting notes

  • If you’re snagging constantly: reduce weight, switch to a slim inline torpedo, and shorten the hooklink slightly.
  • If fish ignore the bait but appear around the slick: try a different bait profile (sandeel vs mackerel), halve the chum volume or move the chum sock slightly away from the hook.
  • If you get lots of small fish: downsize hook and microchum particles to keep scent tight and attract fewer opportunists.

    • The microchum slick isn’t fancy, but set up right it turns kelp bays into focused feeding zones where winter cod can’t resist investigating. I tweak weight, bait and chum density by tide and mood, but the core of the rig stays the same: compact, scented, and positioned exactly where the fish are feeding. Tight lines — and if you try this out, send a trip report; I’m always swapping notes with local anglers and shops for small improvements that make a big difference.