diff --git a/bridges/otelzap/core.go b/bridges/otelzap/core.go
index 59914e125c3..0b0b79aa1f6 100644
--- a/bridges/otelzap/core.go
+++ b/bridges/otelzap/core.go
@@ -133,7 +133,6 @@ func (o *Core) clone() *Core {
 	}
 }
 
-// TODO
 // Sync flushes buffered logs (if any).
 func (o *Core) Sync() error {
 	return nil
@@ -172,7 +171,6 @@ func (o *Core) Write(ent zapcore.Entry, fields []zapcore.Field) error {
 }
 
 func convertField(fields []zapcore.Field) (context.Context, []log.KeyValue) {
-	// TODO: Use objectEncoder from a pool instead of newObjectEncoder.
 	var ctx context.Context
 	enc := newObjectEncoder(len(fields))
 	for _, field := range fields {
diff --git a/bridges/otelzap/encoder.go b/bridges/otelzap/encoder.go
index 8b962bd309c..c831b74389f 100644
--- a/bridges/otelzap/encoder.go
+++ b/bridges/otelzap/encoder.go
@@ -55,15 +55,15 @@ func (m *objectEncoder) calculate(o *namespace) {
 }
 
 func (m *objectEncoder) AddArray(key string, v zapcore.ArrayMarshaler) error {
-	// TODO: Use arrayEncoder from a pool.
-	arr := &arrayEncoder{}
+	arr := newArrayEncoder()
 	err := v.MarshalLogArray(arr)
 	m.cur.attrs = append(m.cur.attrs, log.Slice(key, arr.elems...))
 	return err
 }
 
 func (m *objectEncoder) AddObject(k string, v zapcore.ObjectMarshaler) error {
-	// TODO: Use objectEncoder from a pool.
+	// Similar to console_encoder which uses capacity of 2:
+	// https://github.com/uber-go/zap/blob/bd0cf0447951b77aa98dcfc1ac19e6f58d3ee64f/zapcore/console_encoder.go#L33.
 	newobj := newObjectEncoder(2)
 	err := v.MarshalLogObject(newobj)
 	newobj.calculate(newobj.root)
@@ -195,16 +195,24 @@ type arrayEncoder struct {
 	elems []log.Value
 }
 
+func newArrayEncoder() *arrayEncoder {
+	return &arrayEncoder{
+		// Similar to console_encoder which uses capacity of 2:
+		// https://github.com/uber-go/zap/blob/bd0cf0447951b77aa98dcfc1ac19e6f58d3ee64f/zapcore/console_encoder.go#L33.
+		elems: make([]log.Value, 0, 2),
+	}
+}
+
 func (a *arrayEncoder) AppendArray(v zapcore.ArrayMarshaler) error {
-	// TODO: Use arrayEncoder from a pool.
-	arr := &arrayEncoder{}
+	arr := newArrayEncoder()
 	err := v.MarshalLogArray(arr)
 	a.elems = append(a.elems, log.SliceValue(arr.elems...))
 	return err
 }
 
 func (a *arrayEncoder) AppendObject(v zapcore.ObjectMarshaler) error {
-	// TODO: Use objectEncoder from a pool.
+	// Similar to console_encoder which uses capacity of 2:
+	// https://github.com/uber-go/zap/blob/bd0cf0447951b77aa98dcfc1ac19e6f58d3ee64f/zapcore/console_encoder.go#L33.
 	m := newObjectEncoder(2)
 	err := v.MarshalLogObject(m)
 	m.calculate(m.root)